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The worry about potentially signing malicious transactions in the past

Etherum Reddit

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I have read horror stories about signing malicious transactions and getting drained which encouraged me to learn more about eth on a deeper level.

A common worry I always had was if in the past I had unknowingly signed (not executed) a malicious transaction that an attacker hasn't broadcasted yet but may still use that stored signature sometime in the future. However, as I read more about how signing and transactions work I think I can stop worrying but would appreciate confirmation on my reasoning and if I am getting anything wrong from folks more educated on this topic.

If I understand correctly, every transaction requires a value called a nonce which must be 1 greater than the nonce value of your last confirmed transaction. If it is any other value then the network rejects it.

So by that logic, if I were to sign a malicious transaction that gives all my ETH to an attacker but quickly make a confirmed transaction on the network before the attacker could broadcast theirs, does that mean I would be safe? As they would get rejected for having the wrong nonce value and would require a new signature.

Also, in regards to MetaMask, they disabled 'eth_sign' by default which I believe is the only way to prompt a signature for a transaction. Does this mean that these attacks aren't possible on metamask at all anymore?

submitted by /u/OrderSpecial2723
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